TABLE III 

 Particle size analyses of axial sediments (Cont'd) 



Core Depth in Core 



No, (cm) QV Md/ Q3/ QD?^' Skq/ 



61-8 



61-21 



5 



6.89 



8.52 



11,11 



2.11 



0.48 



25 



5.02 



6.55 



11,55 



3.27 



1.74 



65 



5.22 



7.30 



10,73 



2.76 



0,68 



3 



3.93 



4.74 



8.15 



2.11 



1.30 



10 



4.30 



6.46 



8.60 



2.15 



0.01 



15 



3.55 



6,01 



8.53 



2.49 



0.03 



29 



3.54 



6,09 



8.64 



2,55 



0.00 



40 



4.90 



7.31 



9.72 



2,41 



0.00 



50 



2.50 



5.69 



8.88 



3,19 



0,00 



55 



0.28 



3,87 



7.45 



3,59 



0.00 



59 



5.27 



7,63 



9,99 



2.36 



0.00 



96 



5.51 



7.99 



13,12 



3.81 



1.33 



4 



4.99 



6,20 



9,00 



2,01 



0.80 



12 



5.26 



6,85 



10,59 



2.67 



1.08 



22 



5.95 



7.77 



11.74 



2,90 



1.08 



30 



6.39 



8.43 



12.30 



2,96 



0.92 



61-22B 



Skewness values are predominantly positive; hov/ever, proportionally more samples 

 are skewed in a negative direction, and the skewness values more closely approach 

 zero than near-flank sediments. 



Constituents : Ungraded sections of the axial cores are dominated by pionktonic 

 foraminifera and pteropods; although, reef-derived material is present to some degree. 

 The turbidites are composed in equal part of pelagic and reef-derived materials, 

 Pteropods present in the graded beds are dominated by the genera Creseis (the tapered 

 needlelike form observable in Plate II). 



Core 62-8 contained a number of both clear and smoky angular quartz particles 

 which were not encountered in any other core. Source area of the quartz is unknown 

 but could be explained through transport by winds from a terrestrial continental source; 

 although, wider distribution of the anomalous particles would then be expected. 



Organic Carbon : Organic carbon content in the axial cores averages 0.44 per- 

 cent ^riaiFoBoiTrT^ercent lower than the average for near-flank sediments. The 

 majority of cores show a sharp decrease in organic content with depth. The maximum 

 value encountered was only 1 ,08 percent, 



Vasicek (in Ericson et al, 1961) advanced the theory that turbidity currents rushing 

 down slope should sweep~up~or carry along much living or dead matter which would be 

 deposited with the finer fraction. Previously Ericson et al (1952) reported the common 



32 



